FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Traficanti Joseph J   2. Issuer Name and Ticker or Trading Symbol UNITED NATURAL FOODS INC [UNFI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior Vice President (Last) (First) (Middle) C/O UNITED NATURAL FOODS, INC., 313 IRON HORSE WAY 3. Date of Earliest Transaction (Month/Day/Year) 05/17/2018 (Street) PROVIDENCE, RI 02908 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/17/2018   M(1)   4,875 A $ 25.45 9,755 D   Common Stock 05/17/2018   M(1)   1,717 A $ 37.82 11,472 D   Common Stock 05/17/2018   S(1)   6,680 D $ 47.11 (2) 4,792 D   Common Stock               1,076 I See footnote (3)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (right to buy)

$ 25.45 (4)

05/17/2018

M(1)

4,875

(5)

06/19/2019

Common Stock

4,875

$ 25.45

0

D

Employee Stock Option (right to buy)

$ 37.82 (4)

05/17/2018

M(1)

1,717

(5)

09/12/2021

Common Stock

1,717

$ 37.82

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Traficanti Joseph J C/O UNITED NATURAL FOODS, INC. 313 IRON HORSE WAY PROVIDENCE, RI 02908			Senior Vice President

Signatures

Joseph McGrail, Power-of-Attorney, in fact		05/21/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Acquired as a result of exercising stock options pursuant to Rule 10b5-1 Trading Plan. The exercise of the stock options and sale of shares of common stock reported on this Form 4 was effective pursuant to Rule 10b5-1 Trading Plan adopted by the reporting person on April 13, 2018.
(2)	The transaction price listed is a weighted average. Actual sale prices for these dispositions ranged from $47.00 to $47.27. The reporting person undertakes to provide United Natural Foods, Inc., any security holder of United Natural Foods, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
(3)	Includes 1,076 shares of common stock allocated to the reporting person under the United Natural Foods, Inc. 401(k) Plan's UNFI Stock Fund as of May 18, 2018.
(4)	United Natural Foods, Inc.'s closing price on the NASDAQ National Market on the date of grant.
(5)	The stock options vest and becomes exercisable in four equal annual installments beginning on the first anniversary of the date of grant and expire on the tenth anniversary of the date of grant.

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